塑料制品中酞酸酯向食品模拟物迁移的研究

为了解食品用塑料中酞酸酯类环境激素向食品迁移的规律,研究4种不同模拟食品物条件下塑料中酞酸酯类化合物的溶出量随时间、温度、振荡频率和pH的变化规律。结果表明,不同食品模拟物条件下酞酸酯的溶出量排序为异辛烷、15%乙醇、3%乙酸和水,而酞酸酯的溶出量随着时间和温度的增加而逐渐增大;随振荡频率的升高而增大,但影响不如时间、温度显著;酸性和碱性条件下,酞酸酯的溶出量明显增加。

Study on the migration of phthalate esters of plastic packing in food

In order to understand the rule of transfer of phthalate esters in plastic,four types of simulate food were chose.The parameters were systematically studied,such as time,temperature,vibrating frequency and pH.It was found that extracted amounts of phthalate esters were arranged in the following order: isooctane,15% ethanol,3% acetic acid and water.The extracted amounts of phthalate esters increased as the time prolonged and temperature raised.Vibrating frequency showed less impact on the extracted amounts than time and temperature,but phthalate esters increased as the vibrating frequency and in the acidic and alkalescent conditions increased.